Create a {@link Proposal} with the
* {@link org.eclipse.jgit.transport.ReceiveCommand}s that represent the push.
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/ketch/KetchPreReceive.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/ketch/KetchPreReceive.java
new file mode 100644
index 000000000..1b4307f3f
--- /dev/null
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/ketch/KetchPreReceive.java
@@ -0,0 +1,155 @@
+/*
+ * Copyright (C) 2016, Google Inc.
+ * and other copyright owners as documented in the project's IP log.
+ *
+ * This program and the accompanying materials are made available
+ * under the terms of the Eclipse Distribution License v1.0 which
+ * accompanies this distribution, is reproduced below, and is
+ * available at http://www.eclipse.org/org/documents/edl-v10.php
+ *
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials provided
+ * with the distribution.
+ *
+ * - Neither the name of the Eclipse Foundation, Inc. nor the
+ * names of its contributors may be used to endorse or promote
+ * products derived from this software without specific prior
+ * written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
+ * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
+ * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+ * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
+ * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+package org.eclipse.jgit.internal.ketch;
+
+import static java.util.concurrent.TimeUnit.MILLISECONDS;
+import static java.util.concurrent.TimeUnit.SECONDS;
+import static org.eclipse.jgit.internal.ketch.Proposal.State.EXECUTED;
+import static org.eclipse.jgit.internal.ketch.Proposal.State.QUEUED;
+import static org.eclipse.jgit.transport.ReceiveCommand.Result.NOT_ATTEMPTED;
+import static org.eclipse.jgit.transport.ReceiveCommand.Result.REJECTED_OTHER_REASON;
+
+import java.io.IOException;
+import java.util.Collection;
+
+import org.eclipse.jgit.internal.JGitText;
+import org.eclipse.jgit.transport.PreReceiveHook;
+import org.eclipse.jgit.transport.ProgressSpinner;
+import org.eclipse.jgit.transport.ReceiveCommand;
+import org.eclipse.jgit.transport.ReceivePack;
+import org.slf4j.Logger;
+import org.slf4j.LoggerFactory;
+
+/**
+ * PreReceiveHook for handling push traffic in a Ketch system.
+ *
+ * Install an instance on {@link ReceivePack} to capture the commands and other
+ * connection state and relay them through the {@link KetchLeader}, allowing the
+ * leader to gain consensus about the new reference state.
+ */
+public class KetchPreReceive implements PreReceiveHook {
+ private static final Logger log = LoggerFactory.getLogger(KetchPreReceive.class);
+
+ private final KetchLeader leader;
+
+ /**
+ * Construct a hook executing updates through a {@link KetchLeader}.
+ *
+ * @param leader
+ * leader for this repository.
+ */
+ public KetchPreReceive(KetchLeader leader) {
+ this.leader = leader;
+ }
+
+ @Override
+ public void onPreReceive(ReceivePack rp, Collection cmds) {
+ cmds = ReceiveCommand.filter(cmds, NOT_ATTEMPTED);
+ if (cmds.isEmpty()) {
+ return;
+ }
+
+ try {
+ Proposal proposal = new Proposal(rp.getRevWalk(), cmds)
+ .setPushCertificate(rp.getPushCertificate())
+ .setAuthor(rp.getRefLogIdent())
+ .setMessage("push"); //$NON-NLS-1$
+ leader.queueProposal(proposal);
+ if (proposal.isDone()) {
+ // This failed fast, e.g. conflict or bad precondition.
+ return;
+ }
+
+ ProgressSpinner spinner = new ProgressSpinner(
+ rp.getMessageOutputStream());
+ if (proposal.getState() == QUEUED) {
+ waitForQueue(proposal, spinner);
+ }
+ if (!proposal.isDone()) {
+ waitForPropose(proposal, spinner);
+ }
+ } catch (IOException | InterruptedException e) {
+ String msg = JGitText.get().transactionAborted;
+ for (ReceiveCommand cmd : cmds) {
+ if (cmd.getResult() == NOT_ATTEMPTED) {
+ cmd.setResult(REJECTED_OTHER_REASON, msg);
+ }
+ }
+ log.error(msg, e);
+ }
+ }
+
+ private void waitForQueue(Proposal proposal, ProgressSpinner spinner)
+ throws InterruptedException {
+ spinner.beginTask(KetchText.get().waitingForQueue, 1, SECONDS);
+ while (!proposal.awaitStateChange(QUEUED, 250, MILLISECONDS)) {
+ spinner.update();
+ }
+ switch (proposal.getState()) {
+ case RUNNING:
+ default:
+ spinner.endTask(KetchText.get().starting);
+ break;
+
+ case EXECUTED:
+ spinner.endTask(KetchText.get().accepted);
+ break;
+
+ case ABORTED:
+ spinner.endTask(KetchText.get().failed);
+ break;
+ }
+ }
+
+ private void waitForPropose(Proposal proposal, ProgressSpinner spinner)
+ throws InterruptedException {
+ spinner.beginTask(KetchText.get().proposingUpdates, 2, SECONDS);
+ while (!proposal.await(250, MILLISECONDS)) {
+ spinner.update();
+ }
+ spinner.endTask(proposal.getState() == EXECUTED
+ ? KetchText.get().accepted
+ : KetchText.get().failed);
+ }
+}
diff --git a/org.eclipse.jgit/src/org/eclipse/jgit/internal/ketch/KetchText.java b/org.eclipse.jgit/src/org/eclipse/jgit/internal/ketch/KetchText.java
index a4e42bb09..da85c0112 100644
--- a/org.eclipse.jgit/src/org/eclipse/jgit/internal/ketch/KetchText.java
+++ b/org.eclipse.jgit/src/org/eclipse/jgit/internal/ketch/KetchText.java
@@ -54,11 +54,16 @@ public static KetchText get() {
}
// @formatter:off
+ /***/ public String accepted;
/***/ public String cannotFetchFromLocalReplica;
+ /***/ public String failed;
/***/ public String leaderFailedToStore;
/***/ public String localReplicaRequired;
/***/ public String mismatchedTxnNamespace;
/***/ public String outsideTxnNamespace;
+ /***/ public String proposingUpdates;
/***/ public String queuedProposalFailedToApply;
+ /***/ public String starting;
/***/ public String unsupportedVoterCount;
+ /***/ public String waitingForQueue;
}